Warning: Permanently added '10.128.1.60' (ECDSA) to the list of known hosts. 2020/04/02 13:11:00 parsed 1 programs syzkaller login: [ 56.768554][ T7021] as (7021) used greatest stack depth: 23056 bytes left 2020/04/02 13:11:03 executed programs: 0 [ 57.735539][ T7032] IPVS: ftp: loaded support on port[0] = 21 [ 57.857464][ T7032] chnl_net:caif_netlink_parms(): no params data found [ 57.920282][ T7032] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.928375][ T7032] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.936969][ T7032] device bridge_slave_0 entered promiscuous mode [ 57.947660][ T7032] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.954925][ T7032] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.963353][ T7032] device bridge_slave_1 entered promiscuous mode [ 57.988986][ T7032] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.001441][ T7032] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.029377][ T7032] team0: Port device team_slave_0 added [ 58.040319][ T7032] team0: Port device team_slave_1 added [ 58.063035][ T7032] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 58.070666][ T7032] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 58.097959][ T7032] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 58.110920][ T7032] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 58.118577][ T7032] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 58.145383][ T7032] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 58.206486][ T7032] device hsr_slave_0 entered promiscuous mode [ 58.263646][ T7032] device hsr_slave_1 entered promiscuous mode [ 58.399614][ T7032] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 58.446419][ T7032] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 58.485884][ T7032] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 58.556165][ T7032] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 58.618493][ T7032] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.625966][ T7032] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.634043][ T7032] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.641254][ T7032] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.687176][ T7032] 8021q: adding VLAN 0 to HW filter on device bond0 [ 58.700477][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 58.712020][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.722177][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.731059][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 58.746408][ T7032] 8021q: adding VLAN 0 to HW filter on device team0 [ 58.757288][ T3868] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 58.766634][ T3868] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.773947][ T3868] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.786121][ T7240] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 58.795280][ T7240] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.802650][ T7240] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.826486][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 58.835721][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 58.844873][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 58.857575][ T3868] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 58.866248][ T3868] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 58.878905][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 58.888579][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 58.899899][ T7032] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 58.918518][ T3868] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 58.926024][ T3868] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 58.938855][ T7032] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 58.961627][ T3868] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 58.971760][ T3868] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 58.993291][ T3868] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 59.001776][ T3868] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 59.011089][ T3868] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 59.020056][ T3868] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 59.029287][ T7032] device veth0_vlan entered promiscuous mode [ 59.041047][ T7032] device veth1_vlan entered promiscuous mode [ 59.062451][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 59.071095][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 59.079902][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 59.089296][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 59.101075][ T7032] device veth0_macvtap entered promiscuous mode [ 59.111557][ T7032] device veth1_macvtap entered promiscuous mode [ 59.129619][ T7032] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 59.137647][ T3868] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 59.147191][ T3868] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 59.156146][ T3868] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 59.168100][ T3868] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 59.180576][ T7032] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 59.188593][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 59.198835][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 59.460381][ T7247] ------------[ cut here ]------------ [ 59.465889][ T7247] kernel BUG at drivers/dma-buf/dma-buf.c:99! [ 59.474751][ T7247] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 59.480857][ T7247] CPU: 0 PID: 7247 Comm: syz-executor.0 Not tainted 5.6.0-syzkaller #0 [ 59.489097][ T7247] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.499176][ T7247] RIP: 0010:dma_buf_release+0x36b/0x440 [ 59.504762][ T7247] Code: d0 00 00 00 45 31 e4 e8 c3 eb 45 fd 48 89 ef e8 bb eb 45 fd e8 a6 24 09 fd 44 89 e0 5b 5d 41 5c 41 5d 41 5e c3 e8 95 24 09 fd <0f> 0b e8 8e 24 09 fd 4c 89 e7 e8 f6 e2 00 00 e9 6a ff ff ff e8 7c [ 59.524507][ T7247] RSP: 0018:ffffc900020f7e00 EFLAGS: 00010293 [ 59.530681][ T7247] RAX: ffff8880a8384580 RBX: 0000000000000004 RCX: ffffffff8469cd06 [ 59.538783][ T7247] RDX: 0000000000000000 RSI: ffffffff8469cf8b RDI: 0000000000000005 [ 59.546822][ T7247] RBP: ffff88809a707800 R08: ffff8880a8384580 R09: 0000000000000000 [ 59.554792][ T7247] R10: 0000000000000000 R11: 0000000000000000 R12: ffff888096a1ab04 [ 59.562910][ T7247] R13: ffff888096a1aaa8 R14: ffff88808a4b2b00 R15: ffffffff8469cc20 [ 59.570875][ T7247] FS: 0000000000000000(0000) GS:ffff8880ae600000(0063) knlGS:000000000a180900 [ 59.579939][ T7247] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 59.586516][ T7247] CR2: 00005619861e4858 CR3: 00000000a79ae000 CR4: 00000000001406f0 [ 59.594617][ T7247] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.602587][ T7247] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.610742][ T7247] Call Trace: [ 59.614299][ T7247] __fput+0x2e9/0x860 [ 59.618576][ T7247] task_work_run+0xf4/0x1b0 [ 59.623390][ T7247] exit_to_usermode_loop+0x2fa/0x360 [ 59.628797][ T7247] do_fast_syscall_32+0xbef/0xe90 [ 59.633984][ T7247] entry_SYSENTER_compat+0x70/0x7f [ 59.639090][ T7247] Modules linked in: [ 59.645357][ T7247] ---[ end trace 494db15ca1cf5a14 ]--- [ 59.650962][ T7247] RIP: 0010:dma_buf_release+0x36b/0x440 [ 59.656552][ T7247] Code: d0 00 00 00 45 31 e4 e8 c3 eb 45 fd 48 89 ef e8 bb eb 45 fd e8 a6 24 09 fd 44 89 e0 5b 5d 41 5c 41 5d 41 5e c3 e8 95 24 09 fd <0f> 0b e8 8e 24 09 fd 4c 89 e7 e8 f6 e2 00 00 e9 6a ff ff ff e8 7c [ 59.677180][ T7247] RSP: 0018:ffffc900020f7e00 EFLAGS: 00010293 [ 59.683766][ T7247] RAX: ffff8880a8384580 RBX: 0000000000000004 RCX: ffffffff8469cd06 [ 59.691882][ T7247] RDX: 0000000000000000 RSI: ffffffff8469cf8b RDI: 0000000000000005 [ 59.700099][ T7247] RBP: ffff88809a707800 R08: ffff8880a8384580 R09: 0000000000000000 [ 59.708344][ T7247] R10: 0000000000000000 R11: 0000000000000000 R12: ffff888096a1ab04 [ 59.716626][ T7247] R13: ffff888096a1aaa8 R14: ffff88808a4b2b00 R15: ffffffff8469cc20 [ 59.725139][ T7247] FS: 0000000000000000(0000) GS:ffff8880ae600000(0063) knlGS:000000000a180900 [ 59.734440][ T7247] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 59.741427][ T7247] CR2: 00005619861e4858 CR3: 00000000a79ae000 CR4: 00000000001406f0 [ 59.749750][ T7247] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.758349][ T7247] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.766390][ T7247] Kernel panic - not syncing: Fatal exception [ 59.774434][ T7247] Kernel Offset: disabled [ 59.778782][ T7247] Rebooting in 86400 seconds..